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[HDFS-6981] DN upgrade with layout version change should not use trash - HDFS - [issue]
...Post HDFS-6800, we can encounter the following scenario: We start with DN software version -55 and initiate a rolling upgrade to version -56 We delete some blocks, and they are moved to tras...
http://issues.apache.org/jira/browse/HDFS-6981    Author: James Thomas, 2014-09-06, 21:07
[HDFS-6482] Use block ID-based block layout on datanodes - HDFS - [issue]
...Right now blocks are placed into directories that are split into many subdirectories when capacity is reached. Instead we can use a block's ID to determine the path it should go in. This eli...
http://issues.apache.org/jira/browse/HDFS-6482    Author: James Thomas, 2014-09-04, 03:55
[HDFS-6634] inotify in HDFS - HDFS - [issue]
...Design a mechanism for applications like search engines to access the HDFS edit stream....
http://issues.apache.org/jira/browse/HDFS-6634    Author: James Thomas, 2014-09-03, 17:37
[HDFS-6865] Byte array native checksumming on client side (HDFS changes) - HDFS - [issue]
...Refactor FSOutputSummer to buffer data and use the native checksum calculation functionality introduced in HADOOP-10975....
http://issues.apache.org/jira/browse/HDFS-6865    Author: James Thomas, 2014-08-29, 17:37
[HDFS-6777] Supporting consistent edit log reads when in-progress edit log segments are included - HDFS - [issue]
...For inotify, we want to be able to read transactions from in-progress edit log segments so we can serve transactions to listeners soon after they are committed. This JIRA works toward ensuri...
http://issues.apache.org/jira/browse/HDFS-6777    Author: James Thomas, 2014-08-28, 23:22
[HDFS-6939] Support path-based filtering of inotify events - HDFS - [issue]
...Users should be able to specify that they only want events involving particular paths....
http://issues.apache.org/jira/browse/HDFS-6939    Author: James Thomas, 2014-08-25, 20:36
[HDFS-6853] MiniDFSCluster.isClusterUp() should not check if null NameNodes are up - HDFS - [issue]
...Suppose we have a two-NN cluster and then shut down one of the NN's (NN0). When we try to restart the other NN (NN1), we wait for isClusterUp() to return true, but this will never happen bec...
http://issues.apache.org/jira/browse/HDFS-6853    Author: James Thomas, 2014-08-19, 01:13
[HDFS-6561] Byte array native checksumming on client side (Hadoop changes) - HDFS - [issue]
http://issues.apache.org/jira/browse/HDFS-6561    Author: James Thomas, 2014-08-18, 18:39
[HDFS-6560] Byte array native checksumming on DN side - HDFS - [issue]
http://issues.apache.org/jira/browse/HDFS-6560    Author: James Thomas, 2014-07-11, 22:56
[HDFS-6461] Use Time#monotonicNow to compute duration in DataNode#shutDown - HDFS - [issue]
...The system time can move around for various reasons, so we convert to monotonicNow to ensure greater accuracy when computing a duration in this method....
http://issues.apache.org/jira/browse/HDFS-6461    Author: James Thomas, 2014-05-30, 16:18
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